Valve Lash Adjustment

did you rotate the motor/cam to the heel/bottom on cam lobe, for each valve ?? before you adjusted the rockers ?? you have to rotate the motor ,,and cam to adjust each rocker,, what type or rockers and push rods do you have ?
if you have bent push rods there is a resone for that,either incorrect push rod length or very high spring tension,and not a compatable push rod,,
you may need to pull a few lifters and inspect the cam and lifters,

can you se if your getting oil to the rockers ?